1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_RS_MESH_H 18 #define ANDROID_RS_MESH_H 19 20 21 #include "rsObjectBase.h" 22 23 // --------------------------------------------------------------------------- 24 namespace android { 25 namespace renderscript { 26 /***************************************************************************** 27 * CAUTION 28 * 29 * Any layout changes for this class may require a corresponding change to be 30 * made to frameworks/compile/libbcc/lib/ScriptCRT/rs_core.c, which contains 31 * a partial copy of the information below. 32 * 33 *****************************************************************************/ 34 35 // An element is a group of Components that occupies one cell in a structure. 36 class Mesh : public ObjectBase { 37 public: 38 struct Hal { 39 mutable void *drv; 40 41 struct State { 42 // Contains vertex data 43 // Position, normal, texcoord, etc could either be strided in one allocation 44 // of provided separetely in multiple ones 45 Allocation **vertexBuffers; 46 uint32_t vertexBuffersCount; 47 48 // indexBuffers[i] could be nullptr, in which case only primitives[i] is used 49 Allocation **indexBuffers; 50 uint32_t indexBuffersCount; 51 RsPrimitive *primitives; 52 uint32_t primitivesCount; 53 }; 54 State state; 55 }; 56 Hal mHal; 57 58 explicit Mesh(Context *); 59 Mesh(Context *, uint32_t vertexBuffersCount, uint32_t primitivesCount); 60 ~Mesh(); 61 62 virtual void serialize(Context *rsc, OStream *stream) const; getClassId()63 virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_MESH; } 64 static Mesh *createFromStream(Context *rsc, IStream *stream); 65 void init(); 66 setVertexBuffer(Allocation * vb,uint32_t index)67 void setVertexBuffer(Allocation *vb, uint32_t index) { 68 mVertexBuffers[index].set(vb); 69 mHal.state.vertexBuffers[index] = vb; 70 } 71 setPrimitive(Allocation * idx,RsPrimitive prim,uint32_t index)72 void setPrimitive(Allocation *idx, RsPrimitive prim, uint32_t index) { 73 mIndexBuffers[index].set(idx); 74 mHal.state.indexBuffers[index] = idx; 75 mHal.state.primitives[index] = prim; 76 } 77 78 void render(Context *) const; 79 void renderPrimitive(Context *, uint32_t primIndex) const; 80 void renderPrimitiveRange(Context *, uint32_t primIndex, uint32_t start, uint32_t len) const; 81 void uploadAll(Context *); 82 83 // Bounding volumes 84 float mBBoxMin[3]; 85 float mBBoxMax[3]; 86 void computeBBox(Context *rsc); 87 protected: 88 ObjectBaseRef<Allocation> *mVertexBuffers; 89 ObjectBaseRef<Allocation> *mIndexBuffers; 90 bool mInitialized; 91 }; 92 93 class MeshContext { 94 public: MeshContext()95 MeshContext() { 96 } ~MeshContext()97 ~MeshContext() { 98 } 99 }; 100 101 } // namespace renderscript 102 } // namespace android 103 #endif //ANDROID_RS_MESH_H 104 105 106 107